At least 12 deaths, and more than a hundred injuries have been reported across the Midwest over the weekend.
That number includes seven adults and two children killed in Oklahoma.
Three deaths in Missouri have also been blamed on heavy flooding.
Forecasters say the storms will shift to the east Sunday, from Virginia through Maine.
The National Weather Service said none of the recent tornadoes were as powerful as the EF5 tornado that killed 24 people in Moore, Oklahoma on May 20th.
The storms also knocked out power for thousands of people in Illinois, Missouri, Arkansas, Kansas and Indiana.